What type of engine oil is used in the new Mercedes-Benz E300L?
3 Answers
The new Mercedes-Benz E300L uses engine oil with the specification 5W40. If you want to change the oil during later maintenance, you can choose from brands like Shell, Castrol, Great Wall, Tongyi, or Tianshan. The viscosity of engine oil changes with temperature, so special attention should be paid to its performance under both low and high temperatures. For example, in 5W-30, the first number indicates low-temperature fluidity. 5W means it can withstand temperatures as low as -30°C. The smaller this number, the better the low-temperature fluidity, making cold starts smoother for the car. The latter number represents the oil's kinematic viscosity at 100°C. A higher value means the oil can maintain its viscosity index better at high temperatures, which can also be understood as better lubrication performance under high-temperature conditions. The method for changing the engine oil in the new Mercedes-Benz E300L is as follows: Wait for the engine temperature to drop, allowing the oil to flow back into the oil pan; Use a wrench to loosen the oil drain plug and place an oil pan underneath to catch the old oil until it stops flowing. Start the engine and let it run for 30 seconds to drain the oil from the main oil passage; Use a specialized wrench to remove the oil filter; Apply oil to the seal of the new oil filter and tighten it clockwise by hand; Add new oil through the engine valve cover's oil filler port, typically filling about three-quarters of a standard oil container; Start the engine and let it run for 5 minutes, checking for leaks around the oil drain plug and oil filter. If any leaks are found, perform necessary repairs; After stopping the engine, pull out the oil dipstick to check that the oil level is within the standard range.
I'm the type of driver who's very particular about car maintenance, always supervising the technicians during service. The new E300L absolutely requires Mercedes-certified low-ash engine oil - this is especially crucial! The manual specifies recommended 0W-30 oil with 229.51 or 229.52 certification, and the viscosity must not be mistaken. Last time my cousin used regular 5W-40 oil, and the engine warning light came on immediately. The Mercedes M264 engine has high precision, and even the oil cap is engraved with '229.52' on the inside. I recommend changing it around 7,500 km, especially for vehicles frequently driven in urban areas which tend to generate more particulates. Remember to remind the technician to use a torque wrench when replacing the filter, and the sealing ring should be coated with fresh oil. Using incorrect oil long-term can clog the GPF (Gasoline Particulate Filter), and those repair costs would be frightening.
We just discussed this issue in our car enthusiast group. The owner's manual for the new E300L clearly requires MB229.51/229.52 standard engine oil. Actual tests show that 0W-30 is the most suitable, offering excellent low-temperature fluidity and high-temperature protection. The golden barrel OEM oil commonly used at 4S shops is 229.52 certified. If purchasing yourself, make sure to check for the MB certification number on the packaging. Pay attention to the environmental rating—choose SL or above, and avoid older high-sulfur standard oils. Our group admin conducted tests showing that using the right oil can reduce fuel consumption by about 0.8L, and engine noise is significantly lower.
